h�ԙmo�6��S���߇"@�6k��(�l��j��1�li���(��d�NܵC\(��t$��N�\HBI.� All these compounds are hydrocarbons, so Transformer Oil is is a pure hydrocarbon mineral oil. 5) - Standard grade. Despite the variables that determine the density of the oil, the density number should not exceed 900 kg / m3 at a predetermined temperature of +20°C/+68°F. Natural ester oil has a density and viscosity that is different to mineral oil. The leakage of mineral oil transformer can post a serious threat to environment if leakage or spillage. Box 10700 S-121 29 STOCKHOLM Sweden E-mail address: ProductHSE@nynas.com Telephone No: +46-8-602 1200 Fax: … The only differences are in their molecular structure and molecular weight. x��]�v�6�}�W��sf,6/ f��LzV�t�iGY����r,�I�%Ǟ?����T�A�Ȳ�$k��!�k�.� Cellulose Density (g/cm3) Thickness (mm) Thermal class (IEC 60076-14) Kraft paper 0.97 – 1.2 0.25 105°C Pressboard 1.2 – 1.35 1 105°C TUP 1.2 – 1.3 0.25 120°C Table 1: Cellulose-based material for ageing tests Mineral oil Density @20°C (g/ml) 2 Viscosity Mineral insulating oil in transformers Abstract: Nearly all load bearing transformers in electric power delivery systems around the world are filled with liquid. Optimal kinetic viscosity of the oil at 20 ̊C is about 28-30×10-6 m2/second. Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. The procedure of oil collection at the transformer is called oil sam-pling. An American leading oil refinery that manufacture and sells transformer mineral oil. The tables for recalculation" standard Transformer Oil www.lubes.conoco.com An Inhibited Oil For Transformers And Electric Apparatus. ��vuմ���^�����ݫwO�w���?�}��'������ů�oN͇z7UӰ;��I]M��GWi�3c��N}�����I[�z�����R����K��T���N����vڿ>�U�C��_P���I�������TP�n���IW�u����'��Lݾ�_Y���ɸ��0V�X7:�i��w�e|�c���W��i�1 ����=7��G�z��a�F����־����ZY�I?�Bcӵ��r�K��Y�����Z;]��oLsf�m7���?����Oڦ��Y�zwza@Q�h����P �+��j��3E���e���mѧ���AW�X�㾥�5���d�d�r�b)�o݀�D�p�ܪ�=}Oψ�OX3��=6h��]U�ӹ硣�{�Syr�o?���pR��Z�G�pKM��Q�#���öbN?�W��~hy�w�����Ǐ�����;��;Xv��ԕw�+t���?�a$^5 ����[S�P��6����@=5fwwU��n������i� Ï�f�j�ݪ�}m&���tW�v�� �1{4. Transformer mineral oil (TMO) is a clear liquid with an odour of petroleum. There are some different types of transformer insulating oil available in the market. owner of a transformer manufactured before July 2, 1979, that contains 3 pounds of fluid other than mineral oil at an unknown concentration, while the transformer is in use you must assume it is a PCB Transformer, i.e., that it contains 500 ppm PCBs. The fire point of synthetic ester fluid (316°C) is very high compared to mineral oil (170°C). Unlike competitive products formulated with naphthenic mineral oils, LUMINOL TR and TRi use Petro-Canada's ultra-pure severely hydrotreated isoparaffin base oils to deliver worry-free, corrosive sulphur-free performance in your transformer. Two of the main characteristics of transformer oil are its viscosity and density. 4. It is an uninhibited transformer oil, optimised for high performance to meet the stringent requirements of the IEC 60296:2003 specification. Short term value: 5 mg/m3. found that the surface charge density located at the oil/ pressboard interface in a time unit increases if the value of the real part of relative permittivity increases, respectively if the oil’s resistivity decreases. biot on July 12, 2011. The IEEE limits are split into categories for <69kV, 69–230kV and >230kV. Yes. Transformer oil usually contains oxygen in addition to other gases. Compare the typical characteristics and performance of mineral oil, FR3 ® natural ester fluid, synthetic ester fluid, and silicone transformer oil.. For a more precise estimate tailored to your needs, contact us. Mineral oil is used in a variety of industrial/mechanical capacities as a non-conductive coolant or thermal fluid in electric components as it does not conduct electricity and functions to displace air and water. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. It is uninhibited electrical insulating oil made up of superior quality base oil for use as an insulating and heat transfer media in electrical Numerical analysis. Table 1: Mineral-Oil Based Transformer Oil Constituents. In method of DGA and moisture test, the mineral oil sam-pling must be collected from the transformer with carefully espe-cially bubbles and contaminated during collected. Transformer oil is used in oil-filled electrical power transformers to insulate , stop arcing and corona discharge , and to dissipate the heat of the transformer (i.e. It has a density of around 0.8–0.87 g/cm 3. Transformer oil (also known as insulating oil) is a special type of oil which has excellent electrical insulating properties and is stable at high temperatures. %PDF-1.5 %���� ��6�;mO�ᔈ������� Crude oil or petroleum has always been the primary source of TMO. Another instance when the sampling point of a transformer can change is after the retrofill of insulating fluid, such as Askarel to Silicone. The transformer oil is a combination of mineral oils. A 3D CFD COMSOL model is used to calculate the rated TOT and the rated HST for the mineral oil, Midel 7131, Midel 1204, and Midel 1215. Figure 1: Mineral Oil-Based Transformer Oil System Boundaries. h�b```f``�``a`�c�e@ ^�rL0x_� �.�����j��� P C� �V����Л���i�7l"7C��" ��*d�L@)]0�rH 00�fB�� �n containers. Oil is used to cool the transformer, because it also provides part of the electrical insulationbetween internal live parts, transformer oil must remain stable at high temperatures for an extended period. Compare the typical characteristics and performance of mineral oil, FR3 ® natural ester fluid, synthetic ester fluid, and silicone transformer oil.. For a more precise estimate tailored to your needs, contact us. The TXplore service can be offered for mineral oil, ester fluids and silicone. endstream endobj startxref Mineral oil is one of those most important and widely used insulating materials. MIDEL eN 1215. Despite the variables that determine the density of the oil, the density number should not exceed 900 kg / m3 at a predetermined temperature of +20°C/+68°F. Transformer Oil Mixtures H. Moulai 1, I. Khelfane2, A. Yahiat2 ... chemical properties (aspect, colour, density, water content, acidity, discharge voltage, dissipation factor, viscosity and flash point) of mixtures between a used transformer mineral oil and a new one other of the same nature, and compatibles between them for all ratios. It is of two types: Paraffin-based transformer oil and Naphtha-based transformer oil. Chemical name: Mineral oil. Usually this parameters is not regulated and is within 0.856 to 0.886. h�bbd``b`�$���0 �n $Xw � @��Dl�Ab�AHI>H�2���������b``�5���� q0 MIDEL 7131. has a high fire point, significantly increasing the fire safety of your transformers and reducing the need for fire protection equipment. But, the simulated rated TOT is 80.6 °C and the simulated rated HST is 97 °C. These have a pronounced affect on the function of the oil. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. Some transformers, particularly indoor units, are filled with a synthetic fluid, such as silicon, R-temp, or Askarel (PCB fluid). It is configured as standard based on the density of mineral oil. I guess it's a question of whether you take that over the non-conductivity.) The amount of oil used in a transformer depends on the size of the transformer. 230 0 obj <> endobj A significant portion of the Oxygen is from atmosphere entering through the defects. Different elements affecting density included concoction creation of transformer oil, heat, the thermal conductivity of transformer oil, consistency, kinematic and dynamic warm diffusivity. As the temperature expands, the density of the oil diminishes. Due to these above mentioned negative points attached with mineral oil, its use is highly questionable in many countries. Use oil resistant material in construction of handling equipment. Relevant identified uses of the substance or mixture and uses advised against Identified uses Oil filled transformers and other electrical equipment Uses advised against No specific uses advised against are identified. These precautions are necessary to ensure the transformer oil is protected against moisture and dirt. The use of silicon oil has some better properties like, high flash point (low flammability) but they are very expensive and also non-biodegradable . found that the surface charge density located at the oil/ pressboard interface in a time unit increases if the value of the real part of relative permittivity increases, respectively if the oil’s resistivity decreases. As per the manufacturer of the mineral oil-filled transformer, the rated TOT is 79.7 °C and the rated HST is 96.2 °C. Adjustments in the buoyancy control system are required for other density liquids. 5. 244 0 obj <>/Filter/FlateDecode/ID[<370EF3947900744D855E79C4BB5E3CB8><9D0688DC65C6754888E9B2FEBA598176>]/Index[230 37]/Info 229 0 R/Length 78/Prev 36710/Root 231 0 R/Size 267/Type/XRef/W[1 2 1]>>stream When theRead More �!�pE���^�R��BQ�"@�bDqW�-Q��D�4+��YZsF��VJΝ�Mi|i��~�";r��&;������rWfNj�\f�=����uv�����Jˑeւ�#J8�G�J0|$���.����~[,�yMXvq��F��M��4O8���ᡷ��i��(��A Environmentally safer than mineral oil, MIDEL eN 1215 has a pour point of -18°C and delivers excellent performance in non-free breathing transformers in temperate climates. Technical Data* Transformer Oil Type Class I Class II Density… If the oil is heated, its specific weight decreases, and vise versa when the oil is cold. Transformer Oil will be obtained by fractional distillation and subsequent treatment of crude oil. The calculations for the mineral oil case are matched with the manufacturing data. Most power transformers are filled with mineral oil refined to achieve the desired electrical and chemical properties. Keywords: vegetable oil, mineral oil, power transformers, … Read more about NYTRO Libra (IEC 60296, ED. Physical Properties. Use. Formulas are taken from Russia's GOST R 8.610-2004. alternative to mineral oil, silicone fluid and dry-type transformers. Product name Transformer Oil Product number 7851 Internal identification GHS22014 1.2. 2. Raw Materials. Keywords: vegetable oil, mineral oil, power transformers, electrical charging tendency, flow electrification phenomenon 1. 266 0 obj <>stream 2.2 Silicone fluid Silicone based liquids have been used by transformer manufacturers since the end of 1970’s7, as an alternative to the PCB based liquids, mainly for fire safety applications. Once you decide to dispose of the transformer, you are no longer required to assume that it is a PCB Transformer. Key words: Transformer mineral oil, lifetime, degradation, arrhenius law INTRODUCTION The mineral oil [1-4], with the main roles of insulating and cooling in power transformers, is similar to the blood in human body. 1.1 This specification covers unused mineral insulating oil of petroleum origin for use as an insulating and cooling medium in new and existing power and distribution electrical apparatus, such as transformers, regulators, reactors, circuit breakers, switchgear, and attendant equipment. 76 Transformer Oil 1. (However, mineral oil has much higher viscosity than water, which I'm not sure is what you want as it suppresses convection. 1.3. ASTM D2502 describes how to obtain the mean molecular weight from viscosity measurements at 37.78 °C and 98.89 °C (100 °F and 210 °F). act as a coolant). stream The liquid functions both as an electrical insulation and as a heat transfer fluid. From these, one can assess the environmental influence of the entire life cycle of mineral and vegetable transformer oils. %PDF-1.5 Oil is used to cool the transformer, because it also provides part of the electrical insulationbetween internal live parts, transformer oil must remain stable at high temperatures for an extended period. Electrical oil service equipment must be available when the product is transferred. M��P�[ �%�ý�D�JF�eP�D1&91�JAr�����9Wp In order to manufacture the transformers according to the required performance levels (dielectric characteristics, insulation and projected lifetime), specialized constructive changes were calculated and planned in … The exact density of transformer oil depends upon the manufacturer but, expressed in SI units, is typically a little less than 900 kg/m3 at 20oC. All three MIDEL fluids are more fire-safe and eco-friendly than conventional transformer oil. It is used in oil-filled transformers, some types of high-voltage capacitors, fluorescent lamp ballasts, and some types of high-voltage switches and circuit breakers.Its functions are to insulate, suppress corona discharge and arcing, and to serve as a coolant. It is used in oil-filled transformers, some types of high-voltage capacitors, fluorescent lamp ballasts, and some types of high-voltage switches and circuit breakers.Its functions are to insulate, suppress corona discharge and arcing, and to serve as a coolant. Online calculator. Mineral Oil: Nytro Libra SAFETY DATA SHEET Issued: March 2003 Manufacturer: Nynas AB Emergency Tel: +46-8-33 70 43 . MIDEL eN 1215 is a versatile, fire-safe ester transformer fluid made from renewable soybean crops. %%EOF <> Insulating oils play an important role in power supply. The oil must be kept clean and dry. There are several benefits to conducting periodic analyses of a transformer's insulating fluid. 5 0 obj Mineral-oil based transformer oil is composed of the materials listed in the Table below. Mineral oil is any of various colorless, odorless, light mixtures of higher alkanes from a mineral source, particularly a distillate of petroleum, as distinct from usually edible vegetable oils.. "State system for ensuring the uniformity of measurements for the density of oil. chemical properties (aspect, colour, density, water content, acidity, discharge voltage, dissipation factor, viscosity and flash point) of mixtures between a used transformer mineral oil and a new one other of the same nature, and compatibles between them for all ratios. Specific weight of transformer oil is the ratio of its weight at 20ºC to the weight of the same volume of water at 4ºC. Mineral oil varies in specific gravity from 0.818 to about 0.920, depending on how refined it is. Constituent Mass (kg/kg oil) transformer. However, the production of mineral oil and rapeseed oil and their use in hydraulic fluid has been studied, as has the environmental impact of transformers. Because we offer three different ester fluids, our customers can choose the one that best suits their specific installation and performance criteria. An American leading oil refinery that manufacture and sells transformer mineral oil. Modern power industry requires higher performance dielectric liquids. The liquid functions both as an electrical insulation and as a heat transfer fluid. The big difference is in the density, which is about a factor of 1000 larger for liquids over air at atmospheric pressure. The name mineral oil by itself is imprecise, having been used for many specific oils over the past few centuries. Transformer oil is used to insulate the electrical power of a transformer and used to stop the direct contact of oxygen in the transformer. COMSOL is a powerful tool which can be used in a steady state case study or in a transient case study. Transformer oil is used in oil-filled electrical power transformers to insulate , stop arcing and corona discharge , and to dissipate the heat of the transformer (i.e. 1. endstream endobj 231 0 obj <>/Metadata 14 0 R/Outlines 37 0 R/PageLayout/OneColumn/Pages 228 0 R/StructTreeRoot 42 0 R/Type/Catalog>> endobj 232 0 obj <>/Font<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 233 0 obj <>stream Standard ASTM D3238 defines how to calculate the carbon distribution and ring content of olefin-free petroleum oils from measurement of refractive index, density and molecular weight (by n-d-M method). transformer mineral oil and to estimate its remaining lifetime. Identification of the Substance/Preparation and the Company/Undertaking Product Name: Nytro Libra Product Type: Insulating Oil Supplier: Nynas AB P. O. The basic chemical structures of all the oil are more or less the same. The specific density of transformer oil will vary based on the manufacturer and region or location where the oil will be primarily used. Can the TXplore inspect a transformer that contains PCB contaminated oil? 1: Density of the oil specimens taken from transformers of various ages Flash point (o C) 20 160 140 120 100 80 60 40 0 Engineering measures to reduce exposure: Mechanical ventilation and local exhaust will reduce exposure via the air. So one US gallon weighs between 6.83Lbs to 7.68 Lbs... An … The density of the oil is assumed to be 0.864 kg/L. Transformer Dielectric Fluid Comparison. We are offering a wide range of Transformer Oil which is a series of high performance transformer oils specially developed to satisfy different application and various equipment needs. Mineral insulating oil in transformers Abstract: Nearly all load bearing transformers in electric power delivery systems around the world are filled with liquid. They are applied in transformers as electric insulators and coolants. 3 pounds of fluid other than mineral oil at an unknown concentration, while the transformer is in use you must assume it is a PCB Transformer, i.e., that it contains 500 ppm PCBs. Nytro 4000X is an insulating oil; T110 is a base oil; Nypar 315 and Nyflex 3150 are process oils; The given samples were provided by courtesy of Nynas AB, Sweden. The average density of the fluid is assumed to be 0.9565 kg/L. Then solid materials and oil were put in the ageing test vessel. Last modified: 2012/06/03 by dmitri_kopeliovich Except where otherwise noted, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 … NYTRO Libra is an uninhibited transformer oil that conforms to IEC 60296 Edition 5.0. The MIDEL range of ester transformer fluids delivers an array of distinct benefits when used in a power transformer or distribution unit. %�쏢 MIDEL 7131. is readily biodegradable, avoiding environmental damage should leakage occur and enabling reductions in containment measures. Transformer oil (also known as insulating oil) is a special type of oil which has excellent electrical insulating properties and is stable at high temperatures. [��QF�(�K�NK�WX�`[�L>2`�vD�K,� C̰!W����q�*'�-�A�[U. It is … PRODUCT AND COMPANY IDENTIFICATION Product Name: 76 Transformer Oil Product Code: 1041410 Intended Use: Insulating Oil Synonyms: Conoco Transformer Oil Phillips Transformer Oil Chemical Family: Petroleum Hydrocarbon Responsible Party: Conoco Lubricants A Division of ConocoPhillips 600 N. Dairy Ashford Houston, Texas 77079-1175 LUMINOL TR and TRi contain no corrosive sulphur compounds and do not require passivators. Transformer Oil Description Castrol Insulating Oil is a pure mineral hydrocarbon oil, specially refined and blended from selected crudes. Density of the oil (g cm −3) 0 5 10 15 20 25 30 35 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 Age of the transformer (years) Fig. Transformer Dielectric Fluid Comparison. TRANSFORMER OIL > IEC - 296 (CLASS - I) We offer Transformer Oil manufactured from imported Base Stocks and possessing following advantageous features to make it suitable for use as an electrical insulating & good heat transfer medium and quenching medium for power and distribution electrical apparatus such as Power Transformers, Capacitors, Switch Gears, Circuit Breakers and allied … TLV-TWA 8 hours ACGIH (1998). Also, natural ester oil transformer designs are more insulation intensive as the electrical stresses are present in the paper as opposed to mineral oil where the stresses are in the oil. Recalculation of the density of oil for different temperature and pressure values. Density of Transformer Oil at 29.5oC is 0.89g/cm3. Experimental measurements of oil density versus temperature for the three esters and the mineral oil. Store under recommended Transformer Oil consists of organic compounds namely parraffins, naphthenes, aromatics and olefins. In service evaluation of mineral oils is defined by the standard IEC 60422. act as a coolant). Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. Developed and formulated to deliver solid resistance to oil degradation, NYTRO Libra provides good oxidation stability thanks to its natural inhibitors. It is used as insulating oil in transformers because it is stable at high temperatures (Modenes et al., 2018). The specific density of transformer oil will vary based on the manufacturer and region or location where the oil will be primarily used. Been used for many specific oils over the non-conductivity. the choice of new... 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Of water at 4ºC stable at high temperatures ( Modenes et al., 2018.!, our customers can choose the one that best suits their specific installation and performance criteria a case! For transformers and electric Apparatus transformer oil is an uninhibited transformer oil will be primarily used liquid. Natural inhibitors to conducting periodic analyses of a transformer 's insulating fluid average... Entering through the defects oils over the non-conductivity. and density is heated, specific... Reducing the need for fire protection equipment the entire life cycle of mineral and vegetable transformer.. Are applied in transformers because it is configured as standard based on manufacturer... By removing the top cover, for example regulated and is within 0.856 to 0.886 due to above.